Hook Shaft And Knife Carrier - Duerkopp Adler 609 Service Instructions Manual

7.4 Hook shaft and knife carrier

4
9
15
Caution Risk of Injury!
Turn the main switch off.
Check and set the hook shaft and knife carrier only with the sewing
machine turned off.
Rule and control
The hook shaft 2 and the knife carrier 1 should have only slight axial
play but must still run easily.
–
Check the play (tightness) of the hook shaft.
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Turn the handwheel in the direction which it runs, until the
thread-pulling knife can be swung in.
–
Check for the smooth operation of both the knife carrier and the
transmission elements.
Adjustment to the hook shaft
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11 Set the setting collars 13 and 14 tight.
–
Check the hook settings and correct if necessary (see Chapter 6).
Adjustment to the knife carrier
–
Set the knife carrier 1 with the tip of the thread-pulling knife, axially
to the needle.
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Set lever 9 tight on bush 8.
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Set control cam 4 tight on lever 9.
The knife carrier is fixed axially.
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Set bevel wheel 7 tight on bevel wheel 6.
–
The tie rod 15 must move the lever 9 easily without tilting. The
control cam 4 must run on the spool in crank 11.
–
Check the function of the thread trimmer and correct, if necessary.
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